NO. 1258. COLLECTION OF HUMMINGBIRDS— OBERHOLSER. 823 
on the western side of Antisana in the eastern Cordillera, but not on the eastern 
side of that mountain. They do not remain here all the year round, and some years 
very few come. Females were remarkalily in the minority, this possibly to be 
accounted for by later arrival or the use of other feeding grounds. Local name, 
"Pecho bianco" — white chest. 
UROCHROA BOUGUERI (Bourcier). 
Trochilus hougueri Bourcier, Compt. Rend. Ac. Sci., XXXII, 1851, p. 186. 
Urochroa hougueri Gould, Mon. Troch., II, 1856, ]il. lvii. 
Two adult males from near Quito, Ecuador. They were taken in 
the Guallabamba, which the collector.s describe as "a deep, hot ravine 
north of Quito.'' 
From the rocky ravine of tlie Guallabamba at about 7,000 feet. They appeared 
swifter on the wing than any other hummingbird I can remember, and were conse- 
quently difficult to shoot, so that a gun had to be used, it being impossible to aim at 
them with a blowpipe. 
CLYTOLAEMA AURESCENS (Gould). 
Trochilus {Lam2)ornis) auresceus Gould, Proc. Zool. Soc. Lond., 1846, p. 88. 
CJytoliema aurescens Gould, Mon. Troch., IV, 1861, pi. ccl. 
Two adult males from Napo village, east Ecuador. These are 
identical with a specimen from Pebas, Peru. 
PHAIOLAIMA AEQUATORIALIS Gould. 
Pliaiolaima xquatorialis Gould, Mon. Troch. , IV, 1860, pi. cclxix. 
Six specimens from Canzacota, west Ecuador. The female differs 
from the male in lacking the glittering throat spot, in having the green 
of the chin much mixed with huffy, and the bend of the wing less red- 
dish. From the female of Pliaiolaima ruhinoides^ which the female 
of the present species closeh^ resembles, it ma}- be separated b}^ the 
longer bill, usually darker head, and paler under parts. This species 
is confined apparentl}^ to the western side of the Andes. Though 
closely allied to ruhinoides^ it seems to be a distinct species. 
All our specimens were obtained at Canzacota, at 6,500 feet elevation. They are 
not common, appearing here only periodically, and are called locally "Canzacotas." 
PHAIOLAIMA CERVINIGULARIS Salvin. 
Ph.rolxma cervinigularis Salxi};, Cat. Birds Brit. Mus., XVI, 1892, p. 325. 
Seven males, from Baeza, and from Cosanga, below Baeza on the 
road to Archidona — both localities in east Ecuador. These examples 
are exceedingly interesting, since they determine for the first time 
the exact habitat of the species. The two type specimens which are 
now in the British Museum, and which seem to be the only ones hitherto 
recorded, were without definite locality data, but were supposed b}' 
Mr. Salvin to have come from Ecuador. Pliaiolaima cervinigidaris 
apparently reipXaces Phaiolaiina aequatorial is on the eastern side of the 
